condition mean min max 4 h after light 346.246711 336.757987 355.735435 8 h after light 416.59197500000005 347.070459 486.113491 12 h after light 454.961009 439.780769 470.141249 4 h after dark 496.3414105 484.547913 508.134908 8 h after dark 437.076624 416.15196 458.001288 12 h after dark 416.915331 416.915331 416.915331